ResInsight/ThirdParty/expressionparser/ExpressionParserImpl.h

50 lines
1.7 KiB
C++

/////////////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2017- Statoil ASA
//
// ResInsight is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// ResInsight is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE.
//
// See the GNU General Public License at <http://www.gnu.org/licenses/gpl.html>
// for more details.
//
/////////////////////////////////////////////////////////////////////////////////
#pragma once
#include "exprtk/exprtk.hpp"
#include <QString>
//==================================================================================================
///
//==================================================================================================
class ExpressionParserImpl
{
typedef exprtk::symbol_table<double> symbol_table_t;
typedef exprtk::expression<double> expression_t;
typedef exprtk::parser<double> parser_t;
public:
ExpressionParserImpl();
static std::vector<QString> detectReferencedVariables(const QString& expression);
void assignVector(const QString& variableName, std::vector<double>& vector);
bool evaluate(const QString& expressionText, QString* errorText = nullptr);
static QString expandIfStatements(const QString& expressionText);
private:
QString parserErrorText(parser_t& parser);
private:
symbol_table_t m_symbol_table;
};